Corrugated paper-board.



J. N. HAHN.

CORRUGATED PAPER BOARD.

APPLICATION FILED SEPT. 14, 1910.

997,994, Patented July 18,1911.

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FIG. 3.

' ATTEST I .INYEHT H i jtFJHH BLHAHBI I QA/L'wv-vM PPP BY AT VS Y regard as equally board for all packing purposes especially back from the body,

UNITED STATES PATENT JOHN 1v. HAHN, or CLEVELAND, OHIO.

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'conRUGA'rEn PAPER-BOARD.

Specification of Letters Patent.

atente Ju1y1s, 1911."

Application filed September 14, 1910. Serial m. 581,958.:

To all whom it-may concern:

Be it known that I, JOHN N. HAHN, a citizen of the. United States, residing. at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Corrugated .PaperTBOard, of which the following is a specification.

This invention consists in animprovement in what has become known as corrugated paper-board, a manufacture now very generally used in making boxes or receptacles for transporting various articles of merchandise' which are comparatively light and require precautions against breakage, and in the packing of such articles in boxes and parcels, all as will hereinafter more fully appear. r 1 In the accompanying drawings, Figure 1 is a perspective view of a piece of my new and. improved board in one of its forms showing the covering sheet as partly turned and Fig. 2 is an edge elevation of the said board. Fig. 3 is a perspective view of a modification of the board.

Now, I have conceived the idea of a twoply double faced board as a substitute for the three-ply board of commerce which I as good asthe three-ply and at least one-fourth cheaper in the cost ofmanufacture and to the purchaser. This board consists 'of a suitable sheet or part A,

' which is also referred to as thej body of the heavier .or t

boardandwhich is formed u' with scattered or staggered corrugations and inden-.

tations 2 and 3 "respectively on opposite sides. All saidscorrugations or projections 2 are on one side of the sheet while all the indentations or hollow spaces 3 are on'the other side, and the land or surface 4 between said indentations remain flat and smooth as originally.

" A flat facing sheet B is pasted across or upon the backs orbottoms of the said'corrugations and this com letes the manufacture; There is this di erence, however, to

be noted respecting the two sheets shown that the body ply or sheet A is considerably lcker than the facing sheet B,

- sheet B covers over the same distinguishing in this instance, and has stock: enough to enable the said corrugations or indentations to be drawn out'of the said body while the paper is suitably softened-or moistened to maintain sufficient thickness to make the corrugations stiff and firm. In fact, upon examination it will be found that the stock in the back of the said corrugations or pro flat or even portion or surface 4; bet-ween the said corrugations and which faces the board on'that side. I thus obtain a two-ply corrugated board with smooth faces on both sides, the intervening surface or space between the indentations 3 being the same as before said indentations were made and hence flush and smooth, while the facing corrugations and evens that side. This gives me a double faced board with two even asides which serves every purpose of the three-ply board as a packing for fragile or easily injured not better and very materially'cheaper than three-ply boards can be made. a In Fig. 3 the same principle of construction obtains-except that in this case'the. in-' dentations 5 are circular rather than oblong. Otherwise the product is essentially the same as in Figs. 1 and 2 and hasthe characteristic of two smooth faces withcorrugations or indent-ations between and giving the board a full corrugated value with only two plys or sheets of paper. The said projections 2 and 5, respectively, are formed with inclined .sustaining walls all around as shown, so

bracing portion I that each wall becomes a capable in itself of withstandingrelatively great lateral pressure while the flat portion jections is substantially as heavy as in the articles and is at least equally as good if of the stock about the said projections is pasted upon-or across said prosubstantially as shown, an exceed- 2 ee'zeeee pressions on the other side, the space beheard is produced by two sheets end flat 0n tween said projections and depressions reboth sides. speetively being flat and even on both sides In testimony whereof I affix my signature of the sheet, and the said projections havin the presence of two Witnesses.

ing inclined sustainingwalls all around each JGHN N. HAHN. projection and a plain fiat surfaced sheet Witnesses:

pasted upon said projections, whereby the 1*. G. MUSSUN,

equivalent of e three-ply corrugated paper E. M, FISHER. 

